gibrannangel gibrannangel
  • 12-12-2020
  • Mathematics
contestada

Consider the line y=8x-9
What is the slope of a line parallel to this line?
What is the slope of a line perpendicular to this line?​

Respuesta :

sabih77
sabih77 sabih77
  • 12-12-2020

compare the line y=8x-9 to y=mx+b where m is a slope and b is y-intercept

so, the line y=8x-9 has a slope m=8

by definition, the slope of a line parallel to this line will be same, m=8

by definition, the slopes of perpendicular lines are negative reciprocals to each other; so, m = -1/8

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